A little demo of :
AS3340 VCO
and
AS3320 VCF
Just random playing and modulating.
I used two 3340`s as oscillators, one is from the Behringer Crave.
They both sound basically the same,
the Behringer Crave`s VCO has better 1V/Oct tracking,
since my DIY version still needs more calibration (it stays in tune-ish for around 2 octaves).
The Filter needs a different CV input for the Cutoff, right now it is direct which seems to be an inverted input.
I also added a Switch where i can change the original Resonance feedback loop resistor value through an additional potentiometer to the Resonance amount value.
At some point i will try to improve the circuitry and expand it.
Reverb FX used (starting at 6:28) NI Replika XT and NI Raum
Both modules are based on the datasheet schematics
with some inputs from these links:
[ Ссылка ]
[ Ссылка ]
![](https://s2.save4k.ru/pic/PYHz87Ejk-Q/mqdefault.jpg)